/**
 * @since 6.0.0
 */
export interface ObjectFitOptions {
    className?: string;
    /**
     * Set this to `true` if the image should only shrink and grow relative to the
     * container, but not extend past it's native width. So let's say there is an
     * image set to 1920x1080:
     *
     * - container is 4096x2160
     *   - inline:
     *     - false - image grows to 4096x2160
     *     - true  - image is 1920x1080
     * - container is 360x800
     *   - inline:
     *     - false - image shrinks to 360×203
     *     - true  - image shrinks to 360×203
     *
     * @defaultValue `false`
     */
    inline?: boolean;
    /**
     * @see {@link https://developer.mozilla.org/en-US/docs/Web/CSS/object-fit}
     * @defaultValue `aspectRatio ? "fill" : "contain"`
     */
    fit?: "contain" | "cover" | "fill" | "none" | "scale-down";
    /**
     * Set this to a custom aspect ratio to use.
     *
     * @example Valid Aspect Ratios
     * ```tsx
     * aspectRatio: "16-9",
     * aspectRatio: "9-16",
     * aspectRatio: "3-4",
     * aspectRatio: "4-3",
     * aspectRatio: "1-1",
     * ```
     *
     * These values are based on the `$object-fit-aspect-ratios` map.
     *
     * @defaultValue `""`
     */
    aspectRatio?: `${number}-${number}`;
}
/**
 * This is a utility className helper function that should be applied to
 * `<img>` and `<video>` elements to make them responsive to their content box
 * container.
 *
 * @example Simple Example
 * ```tsx
 * import { objectFit } from "@react-md/core/objectFit";
 *
 * export function Example() {
 *   return (
 *     <img
 *       alt=""
 *       src="https://example.com/example.png"
 *       className={objectFit()}
 *     />
 *   );
 * }
 * ```
 *
 * @example Setting Aspect Ratio
 * ```tsx
 * import { objectFit } from "@react-md/core/objectFit";
 *
 * export function Example() {
 *   return (
 *     <img
 *       alt=""
 *       src="https://example.com/example.png"
 *       className={objectFit({
 *         aspectRatio: "16-9",
 *       })}
 *     />
 *   );
 * }
 *
 * ```
 *
 * @since 6.0.0
 */
export declare function objectFit(options?: ObjectFitOptions): string;